Eos Downtime for Expansion Cancelled

UPDATE: Due to the unavailability of some parts for the cluster expansion, we will not be shutting down the Eos cluster this week. We will schedule another downtime for Eos when the remaining parts for the cluster expansion arrive.

The Eos cluster will be unavailable on May 18-19th, beginning at 9am on May 18th, for expanding the cluster. Forty-eight additional nodes will be added for this expansion. Each node will have 12 cores per node, using two Intel Westmere 6-core processors, rather than the 8 cores per node on our existing compute nodes. Four of these nodes will also have NVIDIA GPUs based on the Fermi architecture.

The downtime is necessary for adding three switches to the Infiniband fabric to accommodate the new nodes. The total number of cores for Eos will increase from 2592 cores to 3168 cores after the expansion is completed.

Posted on: 10:20 AM, May 18, 2011